Question

The diameter of a red blood cell is about 3 x 10-4 in. What is its diameter in centimeters?

Answer 1

Answer:

The diameter of red blood cell $8\times 10^{-4}cm$

Explanation:

1 in = 2.54 cm

So, $3\times 10^{-4}in = (3\times 10^{-4})\times 2.54 cm$

                                         = $8\times 10^{-4}cm$

Hence the diameter of red blood cell $8\times 10^{-4}cm$